55743200 has 72 divisors (see below), whose sum is σ = 138506760. Its totient is φ = 21900800.

The previous prime is 55743199. The next prime is 55743211. The reversal of 55743200 is 234755.

It is a self number, because there is not a number n which added to its sum of digits gives 55743200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46610 + ... + 47790.

It is an arithmetic number, because the mean of its divisors is an integer number (1923705).

Almost surely, 2^55743200 is an apocalyptic number.

55743200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55743200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69253380).

55743200 is an abundant number, since it is smaller than the sum of its proper divisors (82763560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55743200 is a wasteful number, since it uses less digits than its factorization.

55743200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 55743200 is about 7466.1368859672. The cubic root of 55743200 is about 382.0005299555. Note that the first 3 decimals are identical.

Adding to 55743200 its reverse (234755), we get a palindrome (55977955).

The spelling of 55743200 in words is "fifty-five million, seven hundred forty-three thousand, two hundred".